Finding the Fourth Proportional to 290,249.90, 435,207.24 and 112,549.32
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Solution
The fourth proportional to 290,249.90, 435,207.24 and 112,549.32 is: 168,758.99
Step by Step Solution
- Step 1: Write the proportion equation
290,249.90 : 435,207.24 = 112,549.32 : x - Step 2: Convert to fraction form
290,249.90/435,207.24 = 112,549.32/x - Step 3: Cross multiply
290,249.90x = 435,207.24 × 112,549.32 - Step 4: Simplify right side
290,249.90x = 48,982,278,921.08 - Step 5: Solve for x
x = 48,982,278,921.08/290,249.90 - Step 6: Final answer
x = 168,758.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.